TY - JOUR
T1 - Dosimetry in the presence of strong magnetic fields
AU - O'Brien, D. J.
AU - Schupp, N.
AU - Pencea, S.
AU - Dolan, J.
AU - Sawakuchi, G. O.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/6/5
Y1 - 2017/6/5
N2 - Magnetic resonance imaging-guided radiotherapy (MRIgRT) is an emerging technology that requires the use of radiation fields in the presence of magnetic (B) fields. In the presence of B-fields the Lorentz force influences the trajectories of the secondary electrons, which in turn affects both the dose distribution in water and the dose-response of ionization chambers and several other detectors. Thus, dosimetry in the presence of a B-field requires understanding both the B-field effects on the dose distribution and the response of detectors. In this paper we present measured data to show effects of the B-field on the dose distributions, response of ionization chambers, and presence of air-gaps surrounding the sensitive volume of the detector.
AB - Magnetic resonance imaging-guided radiotherapy (MRIgRT) is an emerging technology that requires the use of radiation fields in the presence of magnetic (B) fields. In the presence of B-fields the Lorentz force influences the trajectories of the secondary electrons, which in turn affects both the dose distribution in water and the dose-response of ionization chambers and several other detectors. Thus, dosimetry in the presence of a B-field requires understanding both the B-field effects on the dose distribution and the response of detectors. In this paper we present measured data to show effects of the B-field on the dose distributions, response of ionization chambers, and presence of air-gaps surrounding the sensitive volume of the detector.
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U2 - 10.1088/1742-6596/847/1/012055
DO - 10.1088/1742-6596/847/1/012055
M3 - Conference article
AN - SCOPUS:85021867070
SN - 1742-6588
VL - 847
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012055
T2 - 9th International Conference on 3D Radiation Dosimetry, IC3DDose 2016
Y2 - 7 November 2016 through 10 November 2016
ER -